Luggage scale with portable power source



FIG. 1 is a Front elevational view of a luggage scale with portable power source showing my new design;

FIG. 2 is a Rear elevational view thereof;

FIG. 3 is a Left side view thereof;

FIG. 4 is a Right side view thereof;

FIG. 5 is a Top plan view thereof;

FIG. 6 is a Bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines in the drawing depict portions of the luggage scale with portable power source that form no part of the claimed design. 

CLAIM The ornamental design for a luggage scale with portable power source, as shown and described. 